APA (7th ed.) Citation

Romulo, C. P. (1961). I walked with heroes. Holt Rinehart and Winston.

Chicago Style (17th ed.) Citation

Romulo, Carlos Pena. I Walked with Heroes. New York: Holt Rinehart and Winston, 1961.

MLA (9th ed.) Citation

Romulo, Carlos Pena. I Walked with Heroes. Holt Rinehart and Winston, 1961.

Warning: These citations may not always be 100% accurate.